Two clinics. Same Google. One pays $80 per booking. The other pays $220.

Google Ads is a microphone. It sends more people in the direction of whatever you've already built. If what you've built is fast, clear, and easy to book, the ads amplify that. You get more bookings at a lower cost per booking as the campaign learns what's working.

If what you've built is slow, confusing, or full of friction, the ads amplify that instead. You get traffic. You pay for clicks. But those clicks don't convert, and the cost per actual booking rises sharply. The ad isn't failing. The system underneath it is failing loudly.

We can see the maths clearly. An optimised website, dialled in tracking, and a clean booking system will get you into the gold standard range: $65 to $120 per new patient. The same ad campaign, the same budget, running into a broken system: you're looking at $180, $200, $250 per patient, if it converts at all.

Most clinics that come to me with a high cost per booking have at least two or three of the broken column below. Often more. The good news is that most of these are fixable in a few weeks, not months.

The calculator below strips out the soft signals that inflate reported conversion numbers. Button clicks, phone number appearances, page visits: these aren't bookings. Actual completed bookings are. Most clinic ad accounts are reporting costs per conversion based on the wrong thing. Once you see the real number, you know where the work is.